Physics, 04.02.2020 03:55 xelynncaldera
What is the kinetic energy of an 80 kg football player running at 8 m/s?
Answers: 2
Physics, 21.06.2019 14:20
Physics make-up packetname_cle14. an observer hears a sound with a frequency of 400 hz. if the speed of sound is 340 m/s,what is the wavelength of the sound? a. 0.85 mb. 1.2 mc. 2.75 m13.6 m15. as sound travels from steel into air, its speed decreases. if the frequency of the wavedoesn't change, what happens to its wavelength? a. it increases(b) it decreasesc. it remains the samed. there is not enough information given
Answers: 1
Physics, 23.06.2019 05:00
The voltmeter reads 117 v and ammeter reads 0.13 a .if the resistance of ammeter and voltmeter are 9 kilo ohm and 0.015 ohm respectively ,find the value of r. 3marks
Answers: 3
Physics, 23.06.2019 14:30
An elevator is initially moving upward at a speed of 12.60 m/s. the elevator experiences a constant downward acceleration of magnitude 3.60 m/s2 for 2.97 s.
Answers: 1
Physics, 24.06.2019 01:20
Heat engine absorbs 2 500 j of heat from a hot reservoir and expels 1 000 j to a cold reservoir. when it is run in reverse, with the same reservoirs, the engine pumps 2 500 j of heat to the hot reservoir, requiring 1 500 j of work to do so. find the ratio of the work done by the heat engine to the work done by the pump. is the heat engine reversible
Answers: 3
What is the kinetic energy of an 80 kg football player running at 8 m/s?...
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